Me. i'm still trying to understand parabolas. find the axis of symmetry of the parabola.

a. y = 0

b. y = –1

c. x = 0

d. x = –1

Colby and jaquan are growing bacteria in an experiment in a laboratory. colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours. jaquan starts with 80 of a different type of bacteria that doubles every 3 hours. let x equal number of days. colbys experiment follows the model: a.) y=50*2^x b.) y=50*2^8x c.) y=50*2^12x jaquans experiment follows the model: a.)80*2^x b.)80*2^8x c.)80*2^12x

Place the following steps in order to complete the square and solve the quadratic equation,

What expression is equivalent to 42x-56y